72554152 has 32 divisors (see below), whose sum is σ = 149325120. Its totient is φ = 32775040.

The previous prime is 72554137. The next prime is 72554159. The reversal of 72554152 is 25145527.

It is not an unprimeable number, because it can be changed into a prime (72554159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12228 + ... + 17164.

It is an arithmetic number, because the mean of its divisors is an integer number (4666410).

Almost surely, 2^72554152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72554152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74662560).

72554152 is an abundant number, since it is smaller than the sum of its proper divisors (76770968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72554152 is a wasteful number, since it uses less digits than its factorization.

72554152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5117 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 72554152 is about 8517.8725043288. The cubic root of 72554152 is about 417.0813367977.

Adding to 72554152 its reverse (25145527), we get a palindrome (97699679).

The spelling of 72554152 in words is "seventy-two million, five hundred fifty-four thousand, one hundred fifty-two".